If you have a Bretford sync case, it has plug-ins for 20 iPods.
Plan for headphones if the app activity requires close listening.
Try having students lay iPods down when it's time to listen for instructions. Just try.
Write names of apps you want students to use on the board. Show or describe the icon to them.
Once you have a lot of apps, students will need to use the Search screen more.
If students need to use the same iPod for more than one session, keep a sign-up sheet with their name next to the number of the iPod.
Establish procedures for distributing iPods and collecting them. The video at right shows how important it is to have a procedure for collecting the iPods from students.
Enlist student helpers to put iPods back in the case in numerical order.
Use a document camera and projector to show students how to use an app. Let students use the document camera to show others how to use an app.
If you are using iPod Touches for the first time with your students, or everybody needs a refresher on responsible use, use a slide show such as the one I made for our school:
Classroom Tips